Picture frame



FIG. 1 is a top front and right side perspective view of a picture frame according to my new design;

FIG. 2 is a front elevational view of the picture frame shown in FIG. 1, the rear not shown being devoid of ornamentation;

FIG. 3 is a left side elevational view of the picture frame shown in FIG. 1;

FIG. 4 is a right side elevational view of the picture frame shown in FIG. 1; and,

FIG. 5 is a top plan view of the picture frame shown in FIG. 1, the bottom not shown being devoid of ornamentation. 

The ornamental design for a picture frame, as shown and described. 